diff --git a/src/api_s2c/event/payForDiamond/ApiReceive.ts b/src/api_s2c/event/payForDiamond/ApiReceive.ts
index 6165737..32cc9cb 100644
--- a/src/api_s2c/event/payForDiamond/ApiReceive.ts
+++ b/src/api_s2c/event/payForDiamond/ApiReceive.ts
@@ -23,7 +23,7 @@ function randomWithWeight(groups: diamondWeightGroup[]) {
         if (!maxAmount) {
             maxAmount = group.numrange[1];
         } else {
-            maxAmount = Math.min(maxAmount, group.numrange[1]);
+            maxAmount = Math.max(maxAmount, group.numrange[1]);
         }
     }
     const randomValue = Math.random() * totalWeights; // 随机值落在[0, totalWeights) 之间